60 numbers
88 of them.
There are 450 such numbers.
60.
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
Multiples are the numbers that can be divided by their factors. Like multiples of 2 are 2,4,6,8,10 and so on .The numbers obtained from the multiplication of 2 with all the natural numbers are the multiples of 2.
50
All the even numbers are multiples of 2
The multiples of 2 are the even numbers.
500
There are 450 of them.